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1. 发明授权

US11053975B2 Sliding component 有权
公开(公告)号：US11053975B2
公开(公告)日：2021-07-06
申请号：US16610844
申请日：2018-05-15
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Tadatsugu Imura , Ayano Tanishima , Hideyuki Inoue , Yuichiro Tokunaga , Takeshi Hosoe , Yuta Negishi , Yuki Maetani
IPC分类号： F16C17/04 , F16C33/10
摘要： In an exemplary embodiment, a pair of sliding components has annular sliding surfaces that slide with respect to each other in which plural dimples 10 are arranged on at least sliding surface S on one side, wherein the plural dimples 10 are randomly arranged to form a random dimple group 11, and the dimples 10 are arranged in a manner that a radial-direction coordinate average of centers of the dimples 10 of the random dimple group 11 is smaller than a sliding radius 15 of the sliding surface S.

2. 发明授权

US10941863B2 Sliding component 有权
公开(公告)号：US10941863B2
公开(公告)日：2021-03-09
申请号：US16347657
申请日：2017-11-06
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Yuta Negishi , Sayaka Kosugi , Hideyuki Inoue , Takeshi Hosoe , Yuichiro Tokunaga
IPC分类号： F16J15/34
摘要： A sliding component includes a pair of sliding parts of which a rotating-side sliding part rotates in both forward and reverse directions. In the sliding component, at least one of the sliding parts has a sliding face provided with positive pressure generation grooves on the sealed fluid side, and a negative pressure generation groove on the opposite-to-sealed-fluid side and separated from the opposite-to-sealed-fluid side by a land, and a deep groove communicating with the sealed fluid side on the sealed fluid side of the negative pressure generation groove. The positive pressure generation grooves each have an upstream end communicating with the deep groove, and the negative pressure generation groove has an upstream inlet and a downstream outlet that communicate with the deep groove, and an intermediate portion between the inlet and the outlet located on the opposite-to-sealed-fluid side of the inlet and the outlet.

3. 发明授权

US10487948B2 Sliding component 有权
公开(公告)号：US10487948B2
公开(公告)日：2019-11-26
申请号：US15842862
申请日：2017-12-14
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Hideyuki Inoue , Takeshi Hosoe , Yuta Negishi , Yuichiro Tokunaga
IPC分类号： F16J15/34 , F16J15/16
CPC分类号： F16J15/342 , F16J15/162 , F16J15/3412
摘要： In an embodiment, a sliding part is provided with a mechanism to generate dynamic pressure by means of relative sliding of a pair of sealing faces of the sliding part, which is characterized in that one sealing face is provided with a land 10 for generating dynamic pressure facing the high-pressure fluid side and a seal area 11 facing the low-pressure fluid side, wherein the land 10 and seal area 11 are positioned away from each other in the radial direction and the areas of the sealing face other than the land 10 and seal area 11 are formed lower than these areas to constitute fluid communication paths 12. The fluid entering the grooves for generating dynamic pressure formed on the sealing face is allowed to circulate.

4. 发明授权

US10443737B2 Slide component 有权
公开(公告)号：US10443737B2
公开(公告)日：2019-10-15
申请号：US15521608
申请日：2015-10-28
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Masatoshi Itadani , Kazumasa Sunagawa , Yuichiro Tokunaga , Hideyuki Inoue , Takeshi Hosoe , Ryoma Yamakawa , Yuta Negishi , Kenji Kiryu , Keiichi Chiba , Akira Yoshino , Hiroshi Kubota
IPC分类号： F16J15/34 , F16J15/40
摘要： In an embodiment, a slide component includes one slide part 5 provided, on a low-pressure side of a sealing face thereof, with a negative pressure generation mechanism 10 including a negative pressure generation groove 10. The negative pressure generation groove 10a communicates with a high-pressure fluid side and is separated from a low-pressure fluid side by a land portion R. Another slide part 1 is provided, in a sealing face thereof, with at least one interference groove 15 communicating with the high-pressure fluid side for producing pressure variations in a fluid in the negative pressure generation groove 10a. The at least one interference groove 15 has an end 15a on an inside-diameter side extending to a position to radially overlap the negative pressure generation groove 10a.

5. 发明申请

US20150042045A1 SLIDING COMPONENT 有权
标题翻译：滑动组件
公开(公告)号：US20150042045A1
公开(公告)日：2015-02-12
申请号：US14385925
申请日：2013-05-15
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Hideyuki Inoue , Takeshi Hosoe , Yuta Negishi
IPC分类号： F16J15/40 , F16C33/74
CPC分类号： F16J15/40 , F16C17/02 , F16C33/741 , F16C33/743 , F16C2240/42 , F16J15/3416 , F16J15/3424
摘要： Provide a sliding component that reduces the leakage rate of sealed fluid and significantly improves the lubrication characteristics at startup or stop, while being actuated by means of fluid lubrication in the rotation phase, thereby achieving the effects of sealing and lubrication at the same time. The sliding component is characterized in that: on one sealing face of a pair of sliding parts that slide relative to each other, multiple positive pressure-generating mechanisms that comprise extremely shallow parallel grooves running roughly in parallel with the sealing face and having submicron-level height differences are provided independently in the circumferential direction; the extremely shallow parallel grooves connect to the high-pressure fluid side, but are isolated from the low-pressure fluid side by a seal area; and extremely shallow thin grooves are formed at the bottom of the extremely shallow parallel grooves.
摘要翻译：提供一种滑动部件，可以降低密封流体的泄漏率，并通过在旋转阶段的流体润滑来驱动，显着提高启动或停止时的润滑特性，从而同时实现密封和润滑的效果。滑动部件的特征在于：在相对于彼此滑动的一对滑动部件的一个密封面上的多个正压力产生机构，其包括与密封面大致平行地延伸并具有亚微米级的极浅的平行凹槽在圆周方向上独立地设置高度差; 极浅的平行沟槽连接到高压流体侧，但是通过密封区域与低压流体侧隔离; 并且在极浅的平行凹槽的底部形成极浅的细槽。

6. 发明授权

US12018757B2 Sliding components 有权
公开(公告)号：US12018757B2
公开(公告)日：2024-06-25
申请号：US17420660
申请日：2019-12-06
申请人： Eagle Industry Co., Ltd.
发明人： Hiroshi Suzuki , Yuichiro Tokunaga , Yuta Negishi , Hiroki Inoue , Shogo Fukuda , Wataru Kimura
IPC分类号： F16J15/34 , F16C17/04
CPC分类号： F16J15/3416 , F16C17/045
摘要： A sliding surface of the sliding component is provided with a communication groove having a start point communicating with a sealed fluid side in a radial direction, a storage groove communicating with the communication groove, and a plurality of dynamic pressure generation grooves generating a dynamic pressure at end points thereof upon a run of the rotating machine and the dynamic pressure generation grooves are located on a side of the sealed fluid side space with respect to the storage groove in the radial direction.

7. 发明授权

US11248707B2 Sliding component 有权
公开(公告)号：US11248707B2
公开(公告)日：2022-02-15
申请号：US16610855
申请日：2018-05-15
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Tadatsugu Imura , Ayano Tanishima , Hideyuki Inoue , Yuichiro Tokunaga , Takeshi Hosoe , Yuta Negishi , Yuki Maetani
IPC分类号： F16J15/34 , F16C33/10 , F16C33/74
摘要： In an exemplary embodiment, a pair of sliding components has sliding surfaces that slide with respect to each other, wherein at least one of the sliding surfaces, sliding surface S, includes a random dimple group 11 in which plural dimples 10 are randomly arranged, and the random dimple group 11 is arranged to be biased in the circumferential direction of the sliding surface S. The sliding components have an improved lubricating property and reliability of a sealing property.

8. 发明授权

US11143232B2 Sliding component 有权
公开(公告)号：US11143232B2
公开(公告)日：2021-10-12
申请号：US16349209
申请日：2017-11-14
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Yuta Negishi , Sayaka Kosugi , Hiroki Inoue , Hideyuki Inoue , Takeshi Hosoe , Yuichiro Tokunaga
IPC分类号： F16J15/34 , F16C17/04 , F16C33/10 , F16C33/74
摘要： In an exemplary embodiment of a sliding component, a sliding face S is provided with a first fluid-side negative pressure generation mechanism 12 including a first negative pressure generation groove 13, and is provided with a second fluid-side negative pressure generation mechanism 14 including second negative pressure generation grooves 15 located on the second-fluid side of the first fluid-side negative pressure generation mechanism 12, and is further provided with a dynamic pressure generation mechanism 10 including dynamic pressure generation grooves 11 on at least one of the first-fluid side and the second-fluid side of the first fluid-side negative pressure generation mechanism 12 and the second fluid-side negative pressure generation mechanism 14, and the first negative pressure generation groove 13 is isolated from the second-fluid side by a land R, and the second negative pressure generation grooves 15 are isolated from the first-fluid side by a land R.

9. 发明授权

US11009072B2 Sliding component 有权
公开(公告)号：US11009072B2
公开(公告)日：2021-05-18
申请号：US16480278
申请日：2018-01-15
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Wataru Kimura , Yuichiro Tokunaga , Yuta Negishi , Takeshi Hosoe , Hideyuki Inoue , Tetsuya Iguchi
IPC分类号： F16J15/34 , F16C33/10 , F16J15/40
摘要： In an exemplary embodiment, a sliding component includes a pair of sliding parts 4 and 7 sliding relatively to each other and having sliding faces S formed radially for sealing a liquid or a misty fluid as a sealed fluid against leakage. One sliding part is a stationary-side seal ring 7, and the other sliding part is a rotating-side seal ring 4. At least one of the sliding faces S is provided with positive pressure generation mechanisms 11 having positive pressure generation grooves 12 configured to communicate with a circumferential edge of the sliding face S on the sealed-fluid side and not to communicate with a circumferential edge on the leakage side, and discharge grooves 10 disposed at an angle such that upstream ends are located on the leakage side and downstream ends are located on the sealed-fluid side.

10. 发明授权

US10883603B2 Sliding component 有权
公开(公告)号：US10883603B2
公开(公告)日：2021-01-05
申请号：US15842855
申请日：2017-12-14
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Hideyuki Inoue , Takeshi Hosoe , Yuta Negishi , Yuichiro Tokunaga
IPC分类号： F16J15/34 , F16J15/16
摘要： In an embodiment, a sliding part is provided with a mechanism to generate dynamic pressure by means of relative sliding of a pair of sealing faces of the sliding part, which is characterized in that one sealing face is provided with a land 10 for generating dynamic pressure facing the high-pressure fluid side and a seal area 11 facing the low-pressure fluid side, wherein the land 10 and seal area 11 are positioned away from each other in the radial direction and the areas of the sealing face other than the land 10 and seal area 11 are formed lower than these areas to constitute fluid communication paths 12. The fluid entering the grooves for generating dynamic pressure formed on the sealing face is allowed to circulate.

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